Dataset statistics
| Number of variables | 12 |
|---|---|
| Number of observations | 6497 |
| Missing cells | 0 |
| Missing cells (%) | 0.0% |
| Duplicate rows | 1179 |
| Duplicate rows (%) | 18.1% |
| Total size in memory | 609.2 KiB |
| Average record size in memory | 96.0 B |
Variable types
| NUM | 12 |
|---|
Reproduction
| Analysis started | 2020-07-17 21:03:27.048316 |
|---|---|
| Analysis finished | 2020-07-17 21:04:08.526118 |
| Duration | 41.48 seconds |
| Version | pandas-profiling v2.8.0 |
| Command line | pandas_profiling --config_file config.yaml [YOUR_FILE.csv] |
| Download configuration | config.yaml |
| Dataset has 1179 (18.1%) duplicate rows | Duplicates |
citric acid has 151 (2.3%) zeros | Zeros |
fixed acidity
Real number (ℝ≥0)
| Distinct count | 106 |
|---|---|
| Unique (%) | 1.6% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 7.215307064799139 |
|---|---|
| Minimum | 3.8 |
| Maximum | 15.9 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 3.8 |
|---|---|
| 5-th percentile | 5.7 |
| Q1 | 6.4 |
| median | 7 |
| Q3 | 7.7 |
| 95-th percentile | 9.8 |
| Maximum | 15.9 |
| Range | 12.1 |
| Interquartile range (IQR) | 1.3 |
Descriptive statistics
| Standard deviation | 1.296433758 |
|---|---|
| Coefficient of variation (CV) | 0.1796782516 |
| Kurtosis | 5.061160665 |
| Mean | 7.215307065 |
| Median Absolute Deviation (MAD) | 0.6 |
| Skewness | 1.723289647 |
| Sum | 46877.85 |
| Variance | 1.680740488 |
| Value | Count | Frequency (%) | |
| 6.8 | 354 | 5.4% | |
| 6.6 | 327 | 5.0% | |
| 6.4 | 305 | 4.7% | |
| 7 | 282 | 4.3% | |
| 6.9 | 279 | 4.3% | |
| 7.2 | 273 | 4.2% | |
| 6.7 | 264 | 4.1% | |
| 7.1 | 257 | 4.0% | |
| 6.5 | 242 | 3.7% | |
| 7.4 | 238 | 3.7% | |
| Other values (96) | 3676 | 56.6% |
| Value | Count | Frequency (%) | |
| 3.8 | 1 | < 0.1% | |
| 3.9 | 1 | < 0.1% | |
| 4.2 | 2 | < 0.1% | |
| 4.4 | 3 | < 0.1% | |
| 4.5 | 1 | < 0.1% |
| Value | Count | Frequency (%) | |
| 15.9 | 1 | < 0.1% | |
| 15.6 | 2 | < 0.1% | |
| 15.5 | 2 | < 0.1% | |
| 15 | 2 | < 0.1% | |
| 14.3 | 1 | < 0.1% |
volatile acidity
Real number (ℝ≥0)
| Distinct count | 187 |
|---|---|
| Unique (%) | 2.9% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.3396659996921656 |
|---|---|
| Minimum | 0.08 |
| Maximum | 1.58 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0.08 |
|---|---|
| 5-th percentile | 0.16 |
| Q1 | 0.23 |
| median | 0.29 |
| Q3 | 0.4 |
| 95-th percentile | 0.67 |
| Maximum | 1.58 |
| Range | 1.5 |
| Interquartile range (IQR) | 0.17 |
Descriptive statistics
| Standard deviation | 0.1646364741 |
|---|---|
| Coefficient of variation (CV) | 0.4847010717 |
| Kurtosis | 2.825372417 |
| Mean | 0.3396659997 |
| Median Absolute Deviation (MAD) | 0.08 |
| Skewness | 1.495096542 |
| Sum | 2206.81 |
| Variance | 0.0271051686 |
| Value | Count | Frequency (%) | |
| 0.28 | 286 | 4.4% | |
| 0.24 | 266 | 4.1% | |
| 0.26 | 256 | 3.9% | |
| 0.25 | 238 | 3.7% | |
| 0.22 | 235 | 3.6% | |
| 0.27 | 232 | 3.6% | |
| 0.23 | 221 | 3.4% | |
| 0.2 | 217 | 3.3% | |
| 0.3 | 214 | 3.3% | |
| 0.32 | 205 | 3.2% | |
| Other values (177) | 4127 | 63.5% |
| Value | Count | Frequency (%) | |
| 0.08 | 4 | 0.1% | |
| 0.085 | 1 | < 0.1% | |
| 0.09 | 1 | < 0.1% | |
| 0.1 | 6 | 0.1% | |
| 0.105 | 6 | 0.1% |
| Value | Count | Frequency (%) | |
| 1.58 | 1 | < 0.1% | |
| 1.33 | 2 | < 0.1% | |
| 1.24 | 1 | < 0.1% | |
| 1.185 | 1 | < 0.1% | |
| 1.18 | 1 | < 0.1% |
| Distinct count | 89 |
|---|---|
| Unique (%) | 1.4% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.3186332153301524 |
|---|---|
| Minimum | 0.0 |
| Maximum | 1.66 |
| Zeros | 151 |
| Zeros (%) | 2.3% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0 |
|---|---|
| 5-th percentile | 0.05 |
| Q1 | 0.25 |
| median | 0.31 |
| Q3 | 0.39 |
| 95-th percentile | 0.56 |
| Maximum | 1.66 |
| Range | 1.66 |
| Interquartile range (IQR) | 0.14 |
Descriptive statistics
| Standard deviation | 0.1453178649 |
|---|---|
| Coefficient of variation (CV) | 0.4560662791 |
| Kurtosis | 2.397239216 |
| Mean | 0.3186332153 |
| Median Absolute Deviation (MAD) | 0.07 |
| Skewness | 0.4717306725 |
| Sum | 2070.16 |
| Variance | 0.02111728186 |
| Value | Count | Frequency (%) | |
| 0.3 | 337 | 5.2% | |
| 0.28 | 301 | 4.6% | |
| 0.32 | 289 | 4.4% | |
| 0.49 | 283 | 4.4% | |
| 0.26 | 257 | 4.0% | |
| 0.34 | 249 | 3.8% | |
| 0.29 | 244 | 3.8% | |
| 0.27 | 236 | 3.6% | |
| 0.24 | 232 | 3.6% | |
| 0.31 | 230 | 3.5% | |
| Other values (79) | 3839 | 59.1% |
| Value | Count | Frequency (%) | |
| 0 | 151 | 2.3% | |
| 0.01 | 40 | 0.6% | |
| 0.02 | 56 | 0.9% | |
| 0.03 | 32 | 0.5% | |
| 0.04 | 41 | 0.6% |
| Value | Count | Frequency (%) | |
| 1.66 | 1 | < 0.1% | |
| 1.23 | 1 | < 0.1% | |
| 1 | 6 | 0.1% | |
| 0.99 | 1 | < 0.1% | |
| 0.91 | 2 | < 0.1% |
residual sugar
Real number (ℝ≥0)
| Distinct count | 316 |
|---|---|
| Unique (%) | 4.9% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 5.443235339387409 |
|---|---|
| Minimum | 0.6 |
| Maximum | 65.8 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0.6 |
|---|---|
| 5-th percentile | 1.2 |
| Q1 | 1.8 |
| median | 3 |
| Q3 | 8.1 |
| 95-th percentile | 15 |
| Maximum | 65.8 |
| Range | 65.2 |
| Interquartile range (IQR) | 6.3 |
Descriptive statistics
| Standard deviation | 4.757803743 |
|---|---|
| Coefficient of variation (CV) | 0.8740764355 |
| Kurtosis | 4.359271948 |
| Mean | 5.443235339 |
| Median Absolute Deviation (MAD) | 1.7 |
| Skewness | 1.435404263 |
| Sum | 35364.7 |
| Variance | 22.63669646 |
| Value | Count | Frequency (%) | |
| 2 | 235 | 3.6% | |
| 1.8 | 228 | 3.5% | |
| 1.6 | 223 | 3.4% | |
| 1.4 | 219 | 3.4% | |
| 1.2 | 195 | 3.0% | |
| 2.2 | 187 | 2.9% | |
| 2.1 | 179 | 2.8% | |
| 1.9 | 176 | 2.7% | |
| 1.7 | 175 | 2.7% | |
| 1.5 | 172 | 2.6% | |
| Other values (306) | 4508 | 69.4% |
| Value | Count | Frequency (%) | |
| 0.6 | 2 | < 0.1% | |
| 0.7 | 7 | 0.1% | |
| 0.8 | 25 | 0.4% | |
| 0.9 | 41 | 0.6% | |
| 0.95 | 4 | 0.1% |
| Value | Count | Frequency (%) | |
| 65.8 | 1 | < 0.1% | |
| 31.6 | 2 | < 0.1% | |
| 26.05 | 2 | < 0.1% | |
| 23.5 | 1 | < 0.1% | |
| 22.6 | 1 | < 0.1% |
chlorides
Real number (ℝ≥0)
| Distinct count | 214 |
|---|---|
| Unique (%) | 3.3% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.05603386178236109 |
|---|---|
| Minimum | 0.009 |
| Maximum | 0.611 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0.009 |
|---|---|
| 5-th percentile | 0.028 |
| Q1 | 0.038 |
| median | 0.047 |
| Q3 | 0.065 |
| 95-th percentile | 0.102 |
| Maximum | 0.611 |
| Range | 0.602 |
| Interquartile range (IQR) | 0.027 |
Descriptive statistics
| Standard deviation | 0.03503360137 |
|---|---|
| Coefficient of variation (CV) | 0.6252219686 |
| Kurtosis | 50.89805146 |
| Mean | 0.05603386178 |
| Median Absolute Deviation (MAD) | 0.011 |
| Skewness | 5.399827732 |
| Sum | 364.052 |
| Variance | 0.001227353225 |
| Value | Count | Frequency (%) | |
| 0.044 | 206 | 3.2% | |
| 0.036 | 200 | 3.1% | |
| 0.042 | 187 | 2.9% | |
| 0.046 | 185 | 2.8% | |
| 0.048 | 182 | 2.8% | |
| 0.04 | 182 | 2.8% | |
| 0.05 | 182 | 2.8% | |
| 0.047 | 175 | 2.7% | |
| 0.045 | 174 | 2.7% | |
| 0.038 | 169 | 2.6% | |
| Other values (204) | 4655 | 71.6% |
| Value | Count | Frequency (%) | |
| 0.009 | 1 | < 0.1% | |
| 0.012 | 3 | < 0.1% | |
| 0.013 | 1 | < 0.1% | |
| 0.014 | 4 | 0.1% | |
| 0.015 | 4 | 0.1% |
| Value | Count | Frequency (%) | |
| 0.611 | 1 | < 0.1% | |
| 0.61 | 1 | < 0.1% | |
| 0.467 | 1 | < 0.1% | |
| 0.464 | 1 | < 0.1% | |
| 0.422 | 1 | < 0.1% |
free sulfur dioxide
Real number (ℝ≥0)
| Distinct count | 135 |
|---|---|
| Unique (%) | 2.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 30.525319378174544 |
|---|---|
| Minimum | 1.0 |
| Maximum | 289.0 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 1 |
|---|---|
| 5-th percentile | 6 |
| Q1 | 17 |
| median | 29 |
| Q3 | 41 |
| 95-th percentile | 61 |
| Maximum | 289 |
| Range | 288 |
| Interquartile range (IQR) | 24 |
Descriptive statistics
| Standard deviation | 17.74939977 |
|---|---|
| Coefficient of variation (CV) | 0.5814648342 |
| Kurtosis | 7.906238067 |
| Mean | 30.52531938 |
| Median Absolute Deviation (MAD) | 12 |
| Skewness | 1.220066074 |
| Sum | 198323 |
| Variance | 315.0411923 |
| Value | Count | Frequency (%) | |
| 29 | 183 | 2.8% | |
| 6 | 170 | 2.6% | |
| 26 | 161 | 2.5% | |
| 15 | 157 | 2.4% | |
| 31 | 152 | 2.3% | |
| 24 | 152 | 2.3% | |
| 17 | 149 | 2.3% | |
| 34 | 146 | 2.2% | |
| 35 | 144 | 2.2% | |
| 23 | 142 | 2.2% | |
| Other values (125) | 4941 | 76.1% |
| Value | Count | Frequency (%) | |
| 1 | 3 | < 0.1% | |
| 2 | 2 | < 0.1% | |
| 3 | 59 | 0.9% | |
| 4 | 52 | 0.8% | |
| 5 | 129 | 2.0% |
| Value | Count | Frequency (%) | |
| 289 | 1 | < 0.1% | |
| 146.5 | 1 | < 0.1% | |
| 138.5 | 1 | < 0.1% | |
| 131 | 1 | < 0.1% | |
| 128 | 1 | < 0.1% |
total sulfur dioxide
Real number (ℝ≥0)
| Distinct count | 276 |
|---|---|
| Unique (%) | 4.2% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 115.7445744189626 |
|---|---|
| Minimum | 6.0 |
| Maximum | 440.0 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 6 |
|---|---|
| 5-th percentile | 19 |
| Q1 | 77 |
| median | 118 |
| Q3 | 156 |
| 95-th percentile | 206 |
| Maximum | 440 |
| Range | 434 |
| Interquartile range (IQR) | 79 |
Descriptive statistics
| Standard deviation | 56.52185452 |
|---|---|
| Coefficient of variation (CV) | 0.488332648 |
| Kurtosis | -0.3716636549 |
| Mean | 115.7445744 |
| Median Absolute Deviation (MAD) | 39 |
| Skewness | -0.001177478234 |
| Sum | 751992.5 |
| Variance | 3194.720039 |
| Value | Count | Frequency (%) | |
| 111 | 72 | 1.1% | |
| 113 | 65 | 1.0% | |
| 122 | 57 | 0.9% | |
| 117 | 57 | 0.9% | |
| 98 | 56 | 0.9% | |
| 114 | 56 | 0.9% | |
| 124 | 56 | 0.9% | |
| 128 | 56 | 0.9% | |
| 118 | 55 | 0.8% | |
| 150 | 54 | 0.8% | |
| Other values (266) | 5913 | 91.0% |
| Value | Count | Frequency (%) | |
| 6 | 3 | < 0.1% | |
| 7 | 4 | 0.1% | |
| 8 | 14 | 0.2% | |
| 9 | 15 | 0.2% | |
| 10 | 28 | 0.4% |
| Value | Count | Frequency (%) | |
| 440 | 1 | < 0.1% | |
| 366.5 | 1 | < 0.1% | |
| 344 | 1 | < 0.1% | |
| 313 | 1 | < 0.1% | |
| 307.5 | 1 | < 0.1% |
density
Real number (ℝ≥0)
| Distinct count | 20 |
|---|---|
| Unique (%) | 0.3% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.9947004771432968 |
|---|---|
| Minimum | 0.987 |
| Maximum | 1.039 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0.987 |
|---|---|
| 5-th percentile | 0.99 |
| Q1 | 0.992 |
| median | 0.995 |
| Q3 | 0.997 |
| 95-th percentile | 0.999 |
| Maximum | 1.039 |
| Range | 0.052 |
| Interquartile range (IQR) | 0.005 |
Descriptive statistics
| Standard deviation | 0.003009558063 |
|---|---|
| Coefficient of variation (CV) | 0.003025592258 |
| Kurtosis | 6.502100343 |
| Mean | 0.9947004771 |
| Median Absolute Deviation (MAD) | 0.002 |
| Skewness | 0.4900584549 |
| Sum | 6462.569 |
| Variance | 9.057439735e-06 |
| Value | Count | Frequency (%) | |
| 0.996 | 811 | 12.5% | |
| 0.997 | 720 | 11.1% | |
| 0.995 | 698 | 10.7% | |
| 0.992 | 656 | 10.1% | |
| 0.994 | 641 | 9.9% | |
| 0.998 | 640 | 9.9% | |
| 0.993 | 631 | 9.7% | |
| 0.991 | 521 | 8.0% | |
| 0.99 | 375 | 5.8% | |
| 0.999 | 338 | 5.2% | |
| Other values (10) | 466 | 7.2% |
| Value | Count | Frequency (%) | |
| 0.987 | 8 | 0.1% | |
| 0.988 | 17 | 0.3% | |
| 0.989 | 166 | 2.6% | |
| 0.99 | 375 | 5.8% | |
| 0.991 | 521 | 8.0% |
| Value | Count | Frequency (%) | |
| 1.039 | 1 | < 0.1% | |
| 1.01 | 2 | < 0.1% | |
| 1.004 | 2 | < 0.1% | |
| 1.003 | 9 | 0.1% | |
| 1.002 | 15 | 0.2% |
pH
Real number (ℝ≥0)
| Distinct count | 108 |
|---|---|
| Unique (%) | 1.7% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 3.2185008465445586 |
|---|---|
| Minimum | 2.72 |
| Maximum | 4.01 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 2.72 |
|---|---|
| 5-th percentile | 2.97 |
| Q1 | 3.11 |
| median | 3.21 |
| Q3 | 3.32 |
| 95-th percentile | 3.5 |
| Maximum | 4.01 |
| Range | 1.29 |
| Interquartile range (IQR) | 0.21 |
Descriptive statistics
| Standard deviation | 0.1607872021 |
|---|---|
| Coefficient of variation (CV) | 0.04995717254 |
| Kurtosis | 0.3676572674 |
| Mean | 3.218500847 |
| Median Absolute Deviation (MAD) | 0.11 |
| Skewness | 0.3868387981 |
| Sum | 20910.6 |
| Variance | 0.02585252436 |
| Value | Count | Frequency (%) | |
| 3.16 | 200 | 3.1% | |
| 3.14 | 193 | 3.0% | |
| 3.22 | 185 | 2.8% | |
| 3.2 | 176 | 2.7% | |
| 3.15 | 170 | 2.6% | |
| 3.19 | 170 | 2.6% | |
| 3.18 | 168 | 2.6% | |
| 3.24 | 161 | 2.5% | |
| 3.12 | 154 | 2.4% | |
| 3.1 | 154 | 2.4% | |
| Other values (98) | 4766 | 73.4% |
| Value | Count | Frequency (%) | |
| 2.72 | 1 | < 0.1% | |
| 2.74 | 2 | < 0.1% | |
| 2.77 | 1 | < 0.1% | |
| 2.79 | 3 | < 0.1% | |
| 2.8 | 3 | < 0.1% |
| Value | Count | Frequency (%) | |
| 4.01 | 2 | < 0.1% | |
| 3.9 | 2 | < 0.1% | |
| 3.85 | 1 | < 0.1% | |
| 3.82 | 1 | < 0.1% | |
| 3.81 | 1 | < 0.1% |
sulphates
Real number (ℝ≥0)
| Distinct count | 111 |
|---|---|
| Unique (%) | 1.7% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 0.5312682776666154 |
|---|---|
| Minimum | 0.22 |
| Maximum | 2.0 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 0.22 |
|---|---|
| 5-th percentile | 0.35 |
| Q1 | 0.43 |
| median | 0.51 |
| Q3 | 0.6 |
| 95-th percentile | 0.79 |
| Maximum | 2 |
| Range | 1.78 |
| Interquartile range (IQR) | 0.17 |
Descriptive statistics
| Standard deviation | 0.1488058736 |
|---|---|
| Coefficient of variation (CV) | 0.2800955372 |
| Kurtosis | 8.653698823 |
| Mean | 0.5312682777 |
| Median Absolute Deviation (MAD) | 0.08 |
| Skewness | 1.797270004 |
| Sum | 3451.65 |
| Variance | 0.02214318802 |
| Value | Count | Frequency (%) | |
| 0.5 | 276 | 4.2% | |
| 0.46 | 243 | 3.7% | |
| 0.54 | 235 | 3.6% | |
| 0.44 | 232 | 3.6% | |
| 0.38 | 214 | 3.3% | |
| 0.48 | 208 | 3.2% | |
| 0.52 | 203 | 3.1% | |
| 0.49 | 197 | 3.0% | |
| 0.47 | 191 | 2.9% | |
| 0.45 | 190 | 2.9% | |
| Other values (101) | 4308 | 66.3% |
| Value | Count | Frequency (%) | |
| 0.22 | 1 | < 0.1% | |
| 0.23 | 1 | < 0.1% | |
| 0.25 | 4 | 0.1% | |
| 0.26 | 4 | 0.1% | |
| 0.27 | 13 | 0.2% |
| Value | Count | Frequency (%) | |
| 2 | 1 | < 0.1% | |
| 1.98 | 1 | < 0.1% | |
| 1.95 | 2 | < 0.1% | |
| 1.62 | 1 | < 0.1% | |
| 1.61 | 1 | < 0.1% |
alcohol
Real number (ℝ≥0)
| Distinct count | 111 |
|---|---|
| Unique (%) | 1.7% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 10.49180021548407 |
|---|---|
| Minimum | 8.0 |
| Maximum | 14.9 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 8 |
|---|---|
| 5-th percentile | 9 |
| Q1 | 9.5 |
| median | 10.3 |
| Q3 | 11.3 |
| 95-th percentile | 12.7 |
| Maximum | 14.9 |
| Range | 6.9 |
| Interquartile range (IQR) | 1.8 |
Descriptive statistics
| Standard deviation | 1.192711764 |
|---|---|
| Coefficient of variation (CV) | 0.1136803732 |
| Kurtosis | -0.5316882252 |
| Mean | 10.49180022 |
| Median Absolute Deviation (MAD) | 0.9 |
| Skewness | 0.5657174312 |
| Sum | 68165.226 |
| Variance | 1.422561352 |
| Value | Count | Frequency (%) | |
| 9.5 | 367 | 5.6% | |
| 9.4 | 332 | 5.1% | |
| 9.2 | 271 | 4.2% | |
| 10 | 229 | 3.5% | |
| 10.5 | 227 | 3.5% | |
| 11 | 217 | 3.3% | |
| 9 | 215 | 3.3% | |
| 9.8 | 214 | 3.3% | |
| 10.4 | 194 | 3.0% | |
| 9.3 | 193 | 3.0% | |
| Other values (101) | 4038 | 62.2% |
| Value | Count | Frequency (%) | |
| 8 | 2 | < 0.1% | |
| 8.4 | 5 | 0.1% | |
| 8.5 | 10 | 0.2% | |
| 8.6 | 23 | 0.4% | |
| 8.7 | 80 | 1.2% |
| Value | Count | Frequency (%) | |
| 14.9 | 1 | < 0.1% | |
| 14.2 | 1 | < 0.1% | |
| 14.05 | 1 | < 0.1% | |
| 14 | 12 | 0.2% | |
| 13.9 | 3 | < 0.1% |
quality
Real number (ℝ≥0)
| Distinct count | 7 |
|---|---|
| Unique (%) | 0.1% |
| Missing | 0 |
| Missing (%) | 0.0% |
| Infinite | 0 |
| Infinite (%) | 0.0% |
| Mean | 5.818377712790519 |
|---|---|
| Minimum | 3 |
| Maximum | 9 |
| Zeros | 0 |
| Zeros (%) | 0.0% |
| Memory size | 50.8 KiB |
Quantile statistics
| Minimum | 3 |
|---|---|
| 5-th percentile | 5 |
| Q1 | 5 |
| median | 6 |
| Q3 | 6 |
| 95-th percentile | 7 |
| Maximum | 9 |
| Range | 6 |
| Interquartile range (IQR) | 1 |
Descriptive statistics
| Standard deviation | 0.8732552715 |
|---|---|
| Coefficient of variation (CV) | 0.1500856965 |
| Kurtosis | 0.2323222693 |
| Mean | 5.818377713 |
| Median Absolute Deviation (MAD) | 1 |
| Skewness | 0.1896226934 |
| Sum | 37802 |
| Variance | 0.7625747693 |
| Value | Count | Frequency (%) | |
| 6 | 2836 | 43.7% | |
| 5 | 2138 | 32.9% | |
| 7 | 1079 | 16.6% | |
| 4 | 216 | 3.3% | |
| 8 | 193 | 3.0% | |
| 3 | 30 | 0.5% | |
| 9 | 5 | 0.1% |
| Value | Count | Frequency (%) | |
| 3 | 30 | 0.5% | |
| 4 | 216 | 3.3% | |
| 5 | 2138 | 32.9% | |
| 6 | 2836 | 43.7% | |
| 7 | 1079 | 16.6% |
| Value | Count | Frequency (%) | |
| 9 | 5 | 0.1% | |
| 8 | 193 | 3.0% | |
| 7 | 1079 | 16.6% | |
| 6 | 2836 | 43.7% | |
| 5 | 2138 | 32.9% |
Pearson's r
The Pearson's correlation coefficient (r) is a measure of linear correlation between two variables. It's value lies between -1 and +1, -1 indicating total negative linear correlation, 0 indicating no linear correlation and 1 indicating total positive linear correlation. Furthermore, r is invariant under separate changes in location and scale of the two variables, implying that for a linear function the angle to the x-axis does not affect r.To calculate r for two variables X and Y, one divides the covariance of X and Y by the product of their standard deviations.
Spearman's ρ
The Spearman's rank correlation coefficient (ρ) is a measure of monotonic correlation between two variables, and is therefore better in catching nonlinear monotonic correlations than Pearson's r. It's value lies between -1 and +1, -1 indicating total negative monotonic correlation, 0 indicating no monotonic correlation and 1 indicating total positive monotonic correlation.To calculate ρ for two variables X and Y, one divides the covariance of the rank variables of X and Y by the product of their standard deviations.
Kendall's τ
Similarly to Spearman's rank correlation coefficient, the Kendall rank correlation coefficient (τ) measures ordinal association between two variables. It's value lies between -1 and +1, -1 indicating total negative correlation, 0 indicating no correlation and 1 indicating total positive correlation.To calculate τ for two variables X and Y, one determines the number of concordant and discordant pairs of observations. τ is given by the number of concordant pairs minus the discordant pairs divided by the total number of pairs.
Phik (φk)
Phik (φk) is a new and practical correlation coefficient that works consistently between categorical, ordinal and interval variables, captures non-linear dependency and reverts to the Pearson correlation coefficient in case of a bivariate normal input distribution. There is extensive documentation available here.First rows
| fixed acidity | volatile acidity | citric acid | residual sugar | chlorides | free sulfur dioxide | total sulfur dioxide | density | pH | sulphates | alcohol | quality | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 7.4 | 0.70 | 0.00 | 1.9 | 0.076 | 11.0 | 34.0 | 0.998 | 3.51 | 0.56 | 9.4 | 5 |
| 1 | 7.8 | 0.88 | 0.00 | 2.6 | 0.098 | 25.0 | 67.0 | 0.997 | 3.20 | 0.68 | 9.8 | 5 |
| 2 | 7.8 | 0.76 | 0.04 | 2.3 | 0.092 | 15.0 | 54.0 | 0.997 | 3.26 | 0.65 | 9.8 | 5 |
| 3 | 11.2 | 0.28 | 0.56 | 1.9 | 0.075 | 17.0 | 60.0 | 0.998 | 3.16 | 0.58 | 9.8 | 6 |
| 4 | 7.4 | 0.70 | 0.00 | 1.9 | 0.076 | 11.0 | 34.0 | 0.998 | 3.51 | 0.56 | 9.4 | 5 |
| 5 | 7.4 | 0.66 | 0.00 | 1.8 | 0.075 | 13.0 | 40.0 | 0.998 | 3.51 | 0.56 | 9.4 | 5 |
| 6 | 7.9 | 0.60 | 0.06 | 1.6 | 0.069 | 15.0 | 59.0 | 0.996 | 3.30 | 0.46 | 9.4 | 5 |
| 7 | 7.3 | 0.65 | 0.00 | 1.2 | 0.065 | 15.0 | 21.0 | 0.995 | 3.39 | 0.47 | 10.0 | 7 |
| 8 | 7.8 | 0.58 | 0.02 | 2.0 | 0.073 | 9.0 | 18.0 | 0.997 | 3.36 | 0.57 | 9.5 | 7 |
| 9 | 7.5 | 0.50 | 0.36 | 6.1 | 0.071 | 17.0 | 102.0 | 0.998 | 3.35 | 0.80 | 10.5 | 5 |
Last rows
| fixed acidity | volatile acidity | citric acid | residual sugar | chlorides | free sulfur dioxide | total sulfur dioxide | density | pH | sulphates | alcohol | quality | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6487 | 6.8 | 0.220 | 0.36 | 1.20 | 0.052 | 38.0 | 127.0 | 0.993 | 3.04 | 0.54 | 9.2 | 5 |
| 6488 | 4.9 | 0.235 | 0.27 | 11.75 | 0.030 | 34.0 | 118.0 | 0.995 | 3.07 | 0.50 | 9.4 | 6 |
| 6489 | 6.1 | 0.340 | 0.29 | 2.20 | 0.036 | 25.0 | 100.0 | 0.989 | 3.06 | 0.44 | 11.8 | 6 |
| 6490 | 5.7 | 0.210 | 0.32 | 0.90 | 0.038 | 38.0 | 121.0 | 0.991 | 3.24 | 0.46 | 10.6 | 6 |
| 6491 | 6.5 | 0.230 | 0.38 | 1.30 | 0.032 | 29.0 | 112.0 | 0.993 | 3.29 | 0.54 | 9.7 | 5 |
| 6492 | 6.2 | 0.210 | 0.29 | 1.60 | 0.039 | 24.0 | 92.0 | 0.991 | 3.27 | 0.50 | 11.2 | 6 |
| 6493 | 6.6 | 0.320 | 0.36 | 8.00 | 0.047 | 57.0 | 168.0 | 0.995 | 3.15 | 0.46 | 9.6 | 5 |
| 6494 | 6.5 | 0.240 | 0.19 | 1.20 | 0.041 | 30.0 | 111.0 | 0.993 | 2.99 | 0.46 | 9.4 | 6 |
| 6495 | 5.5 | 0.290 | 0.30 | 1.10 | 0.022 | 20.0 | 110.0 | 0.989 | 3.34 | 0.38 | 12.8 | 7 |
| 6496 | 6.0 | 0.210 | 0.38 | 0.80 | 0.020 | 22.0 | 98.0 | 0.989 | 3.26 | 0.32 | 11.8 | 6 |
Most frequent
| fixed acidity | volatile acidity | citric acid | residual sugar | chlorides | free sulfur dioxide | total sulfur dioxide | density | pH | sulphates | alcohol | quality | count | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 461 | 7.0 | 0.15 | 0.28 | 14.7 | 0.051 | 29.0 | 149.0 | 0.998 | 2.96 | 0.39 | 9.0 | 7 | 8 |
| 623 | 7.3 | 0.19 | 0.27 | 13.9 | 0.057 | 45.0 | 155.0 | 0.998 | 2.94 | 0.41 | 8.8 | 8 | 8 |
| 361 | 6.8 | 0.18 | 0.30 | 12.8 | 0.062 | 19.0 | 171.0 | 0.998 | 3.00 | 0.52 | 9.0 | 7 | 7 |
| 662 | 7.4 | 0.16 | 0.30 | 13.7 | 0.056 | 33.0 | 168.0 | 0.998 | 2.90 | 0.44 | 8.7 | 7 | 7 |
| 661 | 7.4 | 0.16 | 0.27 | 15.5 | 0.050 | 25.0 | 135.0 | 0.998 | 2.90 | 0.43 | 8.7 | 7 | 6 |
| 665 | 7.4 | 0.19 | 0.30 | 12.8 | 0.053 | 48.5 | 229.0 | 0.999 | 3.14 | 0.49 | 9.1 | 7 | 6 |
| 666 | 7.4 | 0.19 | 0.31 | 14.5 | 0.045 | 39.0 | 193.0 | 0.999 | 3.10 | 0.50 | 9.2 | 6 | 6 |
| 729 | 7.6 | 0.20 | 0.30 | 14.2 | 0.056 | 53.0 | 212.5 | 0.999 | 3.14 | 0.46 | 8.9 | 8 | 6 |
| 32 | 5.7 | 0.22 | 0.20 | 16.0 | 0.044 | 41.0 | 113.0 | 0.999 | 3.22 | 0.46 | 8.9 | 6 | 5 |
| 119 | 6.2 | 0.23 | 0.36 | 17.2 | 0.039 | 37.0 | 130.0 | 0.999 | 3.23 | 0.43 | 8.8 | 6 | 5 |